Our core activities include high-resolution multibeam echosounder, side scan sonar, shallow seismic and magnetometer data.

Accurate, real-time visualisation of seabed bathymetry, objects and human-made structures.

Through combining sonar technology with high-performance inertial navigation systems and integrated navigation and processing software, we provide accurate, real-time visualisation of seabed bathymetry, objects and human-made structures.

Subsea bathymetric surveys offshore employ acoustic sensors (Multibeam Echo Sounders) to obtain depth/range measurements, which in turn form terrain models. In the context of a typical bathymetric survey, these sensors are deployed on a survey vessel and acquired dynamically at a speed of around 2-5 knots. 

45 years experience
45 years experience
Land and intertidal
Land and intertidal
Simultaneous acquisition
Simultaneous acquisition
UK-Based
UK-Based

The latest generation of multibeam sonar provides unparalleled resolution, density and quality of bathymetric measurements, even in the most challenging environments.

An ultra-high specification PC with QPS navigation software is used for collection and processing of all multibeam data long with positioning, vessel motion compensation and sound velocity data sets. This information can be fed into basic filters that allow detailed real-time visualisation of usable data coverage, which can be removed if required. 

Georeferencing is governed by Inertial Navigation Systems (INS), so every sounding has a real-world position at the time of acquisition.  GNSS post-processing techniques are then often deployed to correct for environmental or technical factors such as multipath or signal drop out.

We use side scan sonars to resolve discreet features such as localised pipeline damage, small unexploded ordnance, cable exposure, submerged wreckage and even tiny biogenic reef structures.

Side-scan sonar surveys are versatile and provide detailed imagery for several applications, including habitat mapping, unexploded ordnance detection, offshore wind and rig site surveying, and aggregate resource assessment surveying.  We provide high frequency and ultra-high frequency systems, with the latest in chirp and multi-pulse capabilities capable of imaging the smallest of targets. 
 

Sub-bottom profiler data allows us to understand the underlying geology for safe and effective planning.

We provide a range of single-channel profiling solutions, from high-frequency systems capable of identifying buried objects and resolving subtle changes in sub-surface conditions. We work with lower frequency systems such as boomers and sparkers, which allow us to penetrate deeper. 

Land survey services include UXO survey, utility survey and seismic refraction.

Depending upon the project requirements and anticipated geology, we use a variety of seismic sources including a hammer impacting a metal plate, buffalo guns, weight drops, and if required, explosive sources. As the seismic energy travels through the material, it is refracted and reflected at the interface between these layers.

Where the velocity of the underlying layer is higher than that of the above layer, some of the seismic energy is critically refracted from the interface, travelling at the velocity of the lower layer refracting energy back to the surface. Geophones are placed on the surface, typically in a line, to record the incoming refracted waves. Typical applications include mapping the depth to bedrock, determining the rippability of bedrock and locating faults and fractures.

Read about our UAV and topographic services